An origin of good electrical conduction in La4BaCu5O13+δ

dc.contributorAalto-yliopistofi
dc.contributorAalto Universityen
dc.contributor.authorMori, De.
dc.contributor.authorAsai, S.
dc.contributor.authorTerasaki, I.
dc.contributor.authorOkazaki, R.
dc.contributor.authorYasui, Y.
dc.contributor.authorParkkima, Outi
dc.contributor.authorKarppinen, Maarit
dc.contributor.departmentDepartment of Chemistryen
dc.date.accessioned2017-10-15T20:38:12Z
dc.date.available2017-10-15T20:38:12Z
dc.date.issued2015
dc.description.abstractWe have prepared a set of polycrystalline samples of the metallic copper oxide La4BaCu5−xCoxO13+δ (0 ≤ x ≤ 0.35) and have measured the resistivity from 4 to 800 K. All the resistivities show metallic temperature dependence with a small magnitude less than 2 mΩ cm at 800 K, indicating that the metallic conduction is robust against impurities. The robust metallic conduction further suggests that this class of oxide is a promising candidate for electrical leads at high temperature, which might replace platinum. A detailed measurement and analysis on the Hall resistivity have revealed that at least two components are responsible for the electrical conduction, in which a large number of electrons of moderate mobility coexist with a much smaller number of holes of extremely high mobility. This large electron density well screens the impurity potential and retains the metallic conduction against 7% impurity doping.en
dc.description.versionPeer revieweden
dc.format.extent1-6
dc.format.mimetypeapplication/pdf
dc.identifier.citationMori , D , Asai , S , Terasaki , I , Okazaki , R , Yasui , Y , Parkkima , O & Karppinen , M 2015 , ' An origin of good electrical conduction in La4BaCu5O13+δ ' , Journal of Applied Physics , vol. 118 , no. 3 , 035104 , pp. 1-6 . https://doi.org/10.1063/1.4926482en
dc.identifier.doi10.1063/1.4926482
dc.identifier.issn0021-8979
dc.identifier.issn1089-7550
dc.identifier.otherPURE UUID: 504d4990-4d6c-47b6-a9f2-e8719623f3ee
dc.identifier.otherPURE ITEMURL: https://research.aalto.fi/en/publications/504d4990-4d6c-47b6-a9f2-e8719623f3ee
dc.identifier.otherPURE FILEURL: https://research.aalto.fi/files/14779416/1.4926482.pdf
dc.identifier.urihttps://aaltodoc.aalto.fi/handle/123456789/28184
dc.identifier.urnURN:NBN:fi:aalto-201710157044
dc.language.isoenen
dc.relation.ispartofseriesJOURNAL OF APPLIED PHYSICSen
dc.relation.ispartofseriesVolume 118, issue 3en
dc.rightsopenAccessen
dc.titleAn origin of good electrical conduction in La4BaCu5O13+δen
dc.typeA1 Alkuperäisartikkeli tieteellisessä aikakauslehdessäfi
dc.type.versionpublishedVersion
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